Hi, Have you seen my patch from 4th February? https://lkml.org/lkml/2015/2/4/521 I think that it is cleaner as it doesn't add new ifdefs, results in less code being compiled for UP and doesn't open-code cpu_boot_reg_base(). It has also been tested on Exynos4210 Origen board. PS Please cc: me and Daniel on Exynos cpuidle changes (MAINTAINERS file contains a relevant entry). Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics On Monday, March 02, 2015 10:29:42 PM Arnd Bergmann wrote: > arch/arm/mach-exynos/pm.c: In function 'exynos_cpu0_enter_aftr': > arch/arm/mach-exynos/pm.c:246:4: error: implicit declaration of function 'arch_send_wakeup_ipi_mask' [-Werror=implicit-function-declaration] > arch_send_wakeup_ipi_mask(cpumask_of(1)); > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > --- > arch/arm/mach-exynos/pm.c | 19 +++++++++++++++---- > 1 file changed, 15 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c > index e6209dadc00d..a91aefaee31d 100644 > --- a/arch/arm/mach-exynos/pm.c > +++ b/arch/arm/mach-exynos/pm.c > @@ -187,6 +187,7 @@ static int exynos_cpu0_enter_aftr(void) > { > int ret = -1; > > +#ifdef CONFIG_SMP > /* > * If the other cpu is powered on, we have to power it off, because > * the AFTR state won't work otherwise > @@ -216,10 +217,12 @@ static int exynos_cpu0_enter_aftr(void) > cpu_relax(); > } > } > +#endif > > exynos_enter_aftr(); > ret = 0; > > +#ifdef CONFIG_SMP > abort: > if (cpu_online(1)) { > /* > @@ -246,11 +249,12 @@ abort: > arch_send_wakeup_ipi_mask(cpumask_of(1)); > } > } > +#endif > > return ret; > } > > -static int exynos_wfi_finisher(unsigned long flags) > +static int __maybe_unused exynos_wfi_finisher(unsigned long flags) > { > cpu_do_idle(); > > @@ -260,7 +264,7 @@ static int exynos_wfi_finisher(unsigned long flags) > static int exynos_cpu1_powerdown(void) > { > int ret = -1; > - > +#ifdef CONFIG_SMP > /* > * Idle sequence for cpu1 > */ > @@ -282,13 +286,20 @@ cpu1_aborted: > * Notify cpu 0 that cpu 1 is awake > */ > atomic_set(&cpu1_wakeup, 1); > - > +#endif > return ret; > } > > static void exynos_pre_enter_aftr(void) > { > - __raw_writel(virt_to_phys(exynos_cpu_resume), cpu_boot_reg_base()); > + void *reg_base; > + > + if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1) > + reg_base = pmu_base_addr + S5P_INFORM5; > + else > + reg_base = sysram_base_addr; > + > + __raw_writel(virt_to_phys(exynos_cpu_resume), reg_base); > } > > static void exynos_post_enter_aftr(void) > Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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